Rock or coal drilling or other machine.



Patented Nov. l4, i899.

I H. H. BLISS. ROCK 0R GOAL DRILLING OR OTHER MACHINE.

3 Sheets-Sheet I.

(No Modei.)

2 w W E m WITNESSES row-s rmum unauvusmxswmu c.

. Patented Nov. I4, I899. ILH; BLISS.

BUCK 0R GOALJDIIILLING OR OTHER I IAGHIN EQ (No Model.)

(Wm Med Aug. 6, 189,5.)

3 Sheets-Sheet 2,

#hmww [Min r012 'No. 636,748. I Patented Nov. l4, I899.

'H.- H. BLISS. BDCK 0R COAL DRILLING OR OTHER MACHINE.

(Application filed Aug. 6, 18951) QNo Model.) 3 Sheets-Sheet 3.

'UNITED STATES PATENT OFFICE.

IHE'NBY H. James, or WASHINGTON, nis'ra-icr or COLUMBIA.

ROCK OR COAL DRILLING OR OTHER MACHINE.

SPECIFICATION forming part of Letters Patent No. 636,748, dated November 14, 1899 Original application filed December 24, 1886, Serial No. 222,524. Divided and this application filed August 6 1895. Serial lie.

558,408. (No model.) I

To all whom, it may concern:

I 'Be it known that I, HENRY H. BLISS, a citizen of theUnited States, residing at Washington,in the Districtof'Oolu mbia, have inven ted certain newand useful Improvements in Rock or Goal Drilling or other Machines; and I do declare the following to beafull, clear, and

exact description of the invention, such as will enable others skilled in the art to which to itappertains to make and use the same, referenoebeing had to the accompanying drawings, and to the letters of reference marked thereon which. form a part of this specification.

Figure 1 is a plan View of the principal pa r ts=of a mechanism embodying my improvements. Fig. 2 is a front elevation showing also a frame of one of the forms that can be I utilized to support the operative parts. Fig.

3 shows a section of the wheel-support, the co master-wheel being an inside view, together with the intermediate gearing. Fig. 4. is a longitudinal section of the shaft-advancing devices on a larger scale. Fig. 5 is a longitudinal section of the same taken on a horizontal plane looking upward. Fig. 6 is a diagrammatic View of the electric circuit. Fig. 7 isa partial section of the parts in Fig. 8. Fig. 8 is a cross-sectional View of the feed mechanism. Fig. 9 is a plan view of the rotary motor on a larger scale.

A indicates a frame adapted to carry and support the operative parts. It is shown as -mounted on an upright frame A by means V of trnnnions a projecting outwardly from the frame A. The upright frame A is portable and of the class of those adapted to be fastened by jack-screws at the top and bottom,

. as is common in mining, quarrying, drill- At the-front of the frame there is arranged the electric motor, (indicated as a whole by D it having thefield-magn'ets at D, with the poles d and the armature D The armature is formed upon or secured to a tubular shaft d. This shaft has the pinion F secured to it, which drives an intermediate wheel F The latter engages with the main master-gear F which is internally toothed and is formed with a hub or hollow journal F The latter is nected to thefhub F of the master-wheel F D indicates, more or less conventional, the commutator, brushes, and brush-holdersfor the armature.

As the present invention does not relate to the Well-known details of the parts of a mo tor adapted to attain my purposes and as they will be readily understood by those acquaint ed with such mechanisms, it is not necessary to illustrate or describe all of their parts. In fact, the rotation-causing motor, its hollow armature-shaft, gearing, and adjuncts are illustrated in my other application, Serial No. 222,5-3l, filed'December Ell, 1S86,'fr01n which the present subject-matter was withdrawn; but thelpresent construction differs from that remaining in the said other application in important matters incident to the feeding devices. A threaded drill-shaft was therein shown and a threaded nut for moving it'longitudinally. This nut was arranged so as to be adapted to yield if a very severe resistance should be met by the tool. In the present case I dispense with the threaded devices and effect the longitudinal motion of the tool-shaft by electromagnetic action.

Q is a tube which is secured to the rear side of the motor or to the frame A, at the rear thereof. The tool-shaft extends backward into this tube. Around the shaft are placed a series of spools, hollow coils, or solenoids H. These also can be constructed-and ap plied in any preferred way, and the number thereof can be varied as occasion requires. They are electrically connected with the current-supplying circuit in such way that they can be successively energized from one end to the other of the series. At the rear end into it, resulting in a longitudinal advance of of the shaft there-is'a core P, shown as being a cylindrical block situated within 'thetube" Q, and adaptedtto move 'freely'ther'eini. It is so related to the coils. or solen'oidsf H thatit advances it causesthe current to will be drawn forward-from one'to thefothersuccessively as they are ,energizedfa "d will.

act to move the shaft longitudinally 'from'one onmore coils'and into one orf'more of the others successively,'as follows'z-f ht is'a section ofconduc'to'r in the tube Q; preferably supported on the insulation indi- P cated .by h. It is connected tothe supply --main through. the cond 5 they being parallel to the conductor h Each solenoid ormagnet H has one terminal-connected to one of the conductor-sections h? and .the other terminal connected to the outside.

- circuit, as at r..

The cqre P is provided with contacts :q and and the contact q is arranged to' hear against 1 these being preferably small rollers'eleci trically connectedto ariinsulate'd plate q. The contact (1 bears against conductor 10?,

r the conductor-sections h successively,

- .When current is passing through h ..3

and IF, itgoes through contact q, plate g and.con-' .tactiq to a conductor h, andthence through .th'e coils of oneiofj the magnets.

Thereupon themag'net is energized and the core I is 1 drawn toward it..

' b It will be seen that thesections h are somewhat behind'their respective coilsthatis,

only partially overlap the coils. 7 Therefore the contact g passes from each section it tostoppage of the core.

. conne'ction 'with the other figures;

- the-next just before the core P reaches the central or neutral position in each coil.

In order to hold. the core P from rotating, I provide stay-rods Q, which permit it to slide longitudinally, but prevent it from turning. jThe endsof the conductor-sections can be inclined as shown, so that the contact (1 can readily touch two of them simultaneously and, prevent either the forming of an are or the The 'foperation of the'mechanism described will be .readily' understood, reference being had to the diagram of circuits in Fig. .6 in If the switch -1 be in the-position shown in Fig. 6,

the current will pass from 'thepo'sitive main through the switch and the conductor h to the con'ductor'h and thence (assuming that the feed-core P is in its 'rearmost' position) through the contac'tsq g and the first condnjc'torhf and the first'solenoid HT to'thecon dncto'r r to the motor, and thence back to the.

switch affd thengativemain. Instantly the motor is, putiiitorotationandit, through wheels F F F and gibs f, rotates the shaftv B-,-and 'at theis'aine time the first solenoid H is'energizedand the core P 'is drawn forward is cut out, bereadily pushed back by hand. Toavoid imparting jars orblowsto therear .endof tube Q, a cushioning-spring, as at Q 'can'be employed. At K, Fig.7, there is intomatically actuate the switch... A feed mechanism of this sort obviates the necessity of the lever or equivalent, the divided nut, and theseveral parts connectedtherewit-h, which are necessary with-the-yie-lding feed devices in a mechanism of the other sort. The cur rent itself is utilized through electromagnet- "ism to effect both therotationand the longivtudin-al movement of the shaft, I .heparts indicated by I are merely intende for conventionally illustrating a switch or cut-outs Numerous devices have longbeen .well known to electricians for cutting 0E curren t, reversing it, &c'.,- either of which can he Thus in'Fig. 7 atrip is shown at Him the 'suit'ablei'point in the tube Q.

tudinally a; shaft for either of several purposes. Thus 'it has been proposed to. mount ment and to connect with the'core of asolenoid, arranged in a circuit including said generator, devices for inoving said shaft in one direction or the other. to bring, the armature field-coils. Also it has b'e'n proposed to reciprocate a drill-by means ofa series of solenoidssurrounding a core connected withthe stem of the drill and to impart a slight. rotation to such stem at the end of each forward struction the solenoids wereele'ctrioally' con ranged externally of the solenoids, and loninto the path 'of acamon the core, whereby myself to he the fu stttohave combined with continuously rotating motor and an electric "machine either by hand or automatically.- The "shaft B and'core P can, afterthecurrent gitudinally movable pins were; extended through the plates, separatingthesolenoids 125 the said contact-plates connected'with'each solenoidwouldbesuccessivelyforced together to cut out the current frointh'e solenoid as thecore moved longitudinally; Butl believe g y I 3 .a shaft of the character of that-at B botha the shaft Br As the core advances its contactq moves forward and ultimately passes dicated a trip by which the core can itself auused. The advancing parts of the mecham I ism can be utilized to actuate the 'switch.

path of'the core'P. It can be placed at any 1 I am aware of the fact that it. has been proposed to employ solenoids for moving longs the armature of an electric'generatornpon a shaft capable of a limited longitudiu'almoyeinto alinement with a varying number of v or downward reciprocation. In the last 0011- nected with two separate contact plate's ar--' motor for advancing it longitudinally while rotating, and the first to have combined with such a shaft a rotation-causing electromotor and a supplementalelectric motor, such as a series of two or more solenoids for moving the shaft longitudinally, one terminal of each solenoid being connected with a conductor lying between the said shaft and the solenoids. By this construction the electric contacts for controlling the passage of current through the solenoids can be arranged within the series of solenoids.

I do not herein claim any of the matters claimed in my said other application, Serial No. 222,524, filed December 24, 1886, preferring to claim herein those which are incident to the use of solenoids or an electromagnetic motor (supplemental to the rotation-causing devices) for causing longitudinal movement of the shaft entirely by electromagnetism.

While I have shown the present improvements as being embodied in a machine for drilling, cutting, or mining coal or similar material, I do not wish to be limited thereto.

WVhat I claim is--:

1. The combination of a driven shaft, an electromotor for imparting rotary motion thereto having an armature mounted-independently of said shaft, and a supplemental, electromotor for moving the shaft longitudinally, it having-a series of two or more electromagnets adapted to be successively brought into action, substantially as set forth.

2. The combination of the driven shaft, an electromotor forim partin g longitudinal move ment to said shaft and having its armature mounted independently thereof, said motorhaving a series of two or more electromagnets adapted to be successively energized, and power devices supplemental thereto for imparting rotary motion to the shaft, substantially as described.

3. The combination of the driven shaft,

means for continuously rotating it, a seriesof two or more solenoids having a core arranged substantiallyas set forth to move said shaft from one end of its path longitudinally.

to the other, substantially as set forth.

4. The combination of the rotary driven shaft, the electromotor for moving said shaft longitudinally, it having a series of two or more solenoids surrounding the shaft, and a core within said solenoids and engaging with said shaft and adapted to move from one to the other thereof and power devices actuated independently of the said electromotor for,

imparting rotation to the said shaft, substantially as set forth.

5. The combination with the rotary driven longitudinallymovable shaft of two inde-' pendent electromotors one for imparting rotary movement to the shaft and having its armature mounted independently thereof, and the other having a series of two'or more magnets adapted to propel the shaft by elecgromagnetic attraction, substantially as set orth.

6. The combination with the rotary driven longitudinally-movable shaft of the independent electromotors one for imparting ro, tary movement to the shaft and having its armature mounted independently thereof, and the other having a seriesof two or more mag.

nets adapted to propel the shaft by electro=" magnetic action, substantially as set forth.

7. The combination of the shaft, the motor for rotating the shaft, a series of two or more solenoids placed around the shaft and acting independently of the said motor, the core adapted to travel from the interior of one solenoid to the other to advance the shaft, and the interrupted or sectional conductor within the solenoids and electrically connected there with, substantially as set forth. I

8. The combination with the longitudinally-moving cntting tool of the series of two or more solenoids around the longitudinal axis of the cutting-tool, the core within the solenoids connected to the cutting-tool, the electric contachwithin the interior of the solenoids and carried by the core and the conductor within the said solenoids electrically connected with their coils and with the said interior contact and a supply-main having one terminal connected with the solenoids and the other connected with said conductor within said solenoids, substantially asset forth.

9. The combination of the driven rotary shaft, the cutting-tool carried by said shaft, power devices for imparting a continuous rotation to the shaft, and a series of succes-.

sively-actin g electromagnets supplemental to the aforesaid power devices and adapted to move said shaft longitudinally to feed the being rotated by said devices, substantially as set forth.

11'. The combination of the rotary cutting-f tool, the electromagnetic motor having taro or more magnets adapted to be successively energized to move said tool longitudinally,

and a rotary electric motor supplemental to said motorfor continuously rotating said tool, substantially as setforth.

12. The combinatiom with the longitudinally-moving cutting-tool, of the series of two or more solenoids, a core arranged within the 

